EN 14041指导

GNB-CPD SH02 Guidance from the Group of Notified Bodiesfor the Construction Products Directive89/106/EECNB-CPD/SH02/06/033Issued: 12 July 2006APPROVED –GUIDANCEGNB-CPD position paper from SH02 - EN 14041:2004Fire testing and classification protocol for resilient, textile and laminate flooringsGeneral scope, limitations and aim of this guidance for Notified Bodies (NBs)This position paper contains guidance for Notified Bodies (NBs) involved in the attestation of conformity of resilient, textile and laminate floorings according to EN 14041:2004. The purpose is to help NBs work equivalently and come to common judgments. This guidance contains informative material (which NBs should or may follow) and normative guidance (which NBs shall follow or at least work equivalently to as circumstances demand).This guidance is thought necessary to provide clarity and completeness for NBs so that they can work equivalently. It supplements and makes practical for NBs the harmonized standardEN 14041:2004, approved AG guidance, and Standing Committee guidance in the form of GPs, which also apply - unless otherwise explicitly stated in this guidance. This position paper should not contradict nor extend the scope of the work and role of a NB, nor impose additional burdens on the manufacturer, beyond those laid down in the CPD and EN 14041:2004.This guidance should be considered valid until the relevant standards are amended to include the guidance (as thought fit by the CEN/TC); or until guidance from Commission, SCC, and AG has changed on relevant matters. Whereupon, the paper should be considered for withdrawal/revision and be replaced by new guidance as necessary.This position paper was considered approved by SH02 in July 2004 and by Advisory Group (AG) on 29 April 2006.1 Background / considerationFSG Recommendation 015When discussing fire tests as part of the attestation procedure the manufacturer and theNotified Body need to plan the tests to ensure that the maximum amount of information isavailable for the minimum amount of testing. It is important for all Notified Bodies toapproach this is an equivalent manner and take into account the same factors. One of themain considerations is understanding which product properties have an effect on fireperformance and the resultant effects of changing any of the product properties. Theseaspects assist in defining the product family to be tested and the direct and extended field of application of the fire performance parameters obtained.2 AgreementThe document attached has been agreed by the FSG for use by Notified Bodies whenplanning reaction to fire tests for resilient, textile and laminate floorings.3 IntroductionRelevant test methods.There are 4 test methods for testing the reaction to fire behaviour of floor coverings:EN ISO 1716EN ISO 1182EN ISO 9239-1EN ISO 11925-2within the classification system according to EN 13501-1.For floor coverings the classes are: A1fl, A2fl, B fl, C fl, E fl and F fl.Optional classification concerning smoke development results in the classes s1 and s2.For class A1fl the test methods according to EN ISO 1716 and EN ISO 1182 are relevant.For class A2fl the test methods according to EN ISO 1716 or EN ISO 1182 and the testmethod according to EN ISO 9239-1 are relevant. For inhomogeneous materials both thetest method according to EN ISO 1716 and EN ISO 1182 are relevant, if the test according to EN ISO 1182 is chosen for testing the substantial components only.For classes B fl, C fl, and D fl the test methods according to EN ISO 9239-1 and EN ISO11925-2 are relevant.For class E fl the test method according to EN ISO 11925-2 is relevant.For class F fl no performance was ascertained.The number of test specimens mentioned in the following clauses means the minimumnumber or mass of test specimens needed for performing the test. It has to be taken intoconsideration that more test specimens are needed when clause 7 of EN 13501-1 is applied.4 Testing according to EN ISO 9239-14.1 GeneralThis test method takes into regard the end use application. The end use application has to be considered when planning the test. The specimens have to be representative of the floor covering system.At least 3 test specimens (see also item B4) with the size (1050 ± 5) mm x (230 ± 5) mm are necessary for a complete test used for classification purposes. If the thickness of the testspecimen is more than 19 mm the length of the test specimen can be reduced to 1025 mm.This test method optionally also determines the smoke development (s1 or s2). If the smoke development is not determined the classification will be set as s2.Parameters which have to be considered when testing and doing the classification are.- Composition- Thickness- Weight per unit area and/or density- Orientation in regard to the production- Structure of the surface- Adhesive(s)- Substrate(s)- Underlayer(s) and interlayment(s)- Washing and cleaning procedures- Size, e. g. when testing floor covering tiles- Colour and design4.2 CompositionThis parameter is the most important parameter when testing. Each floor covering with adifferent composition has to be tested. No extended application of test results can be done with respect to this parameter.4.3 ThicknessCovering a range of thickness is possible by testing the minimum thickness and themaximum thickness. At least one test specimen with the minimum thickness and one testspecimen with the maximum thickness have to be tested once. The testing of the variantwhich gave the worst test result has to be repeated twice (in total three test specimen of this variant have to be tested). The test results of this variant have to be used for the purpose of classification according to EN 13501-1 covering the range of thickness between theminimum and maximum thickness used in the tests.4.4 Weight per unit area and densityCovering a range of weight per unit area can be done by testing the minimum weight per unit area/density and the maximum weight per unit area/density. At least one test specimen with the minimum weight per unit area/density and one test specimen with the maximum weight per unit area/density have to be tested once. The testing of the variant which gave the worst test result has to be repeated twice (in total three test specimen of this variant have to betested). The test results of this variant have to be used for the purpose of classificationaccording to EN 13501-1 covering the range of weight per unit area/density between theminimum and maximum weight per unit area/density used in the tests.4.5 Effect of orientationFor materials having a directional surface effect at least 4 tests have to be done. 3specimens in the production direction and 3 specimen in a direction perpendicular to theformer have to be prepared. The tests will be done by testing one specimen of each set and then testing the worst case two times further (4 tests in the sum). The worst case determines the classification.4.6 Structure of the surface of the floor coveringThe structure of the surface (e. g. knobbed or smooth surface) may effect the flame spread.If a floor covering is produced with different surface structures this has to be consideredwhen testing, i. e. at least each surface structure has to be tested indicative (one test) and for the worst case the complete set of tests has to be done. The worst case determines the classification.4.7 AdhesivesIf a specific adhesive is used in the test, the test result is only valid for this specific adhesive.If the test is performed without using adhesives the test result is valid for the tested floorcovering with and without using adhesives in end use application.4.8 SubstratesThe specimens have to be tested on a substrate representative for the substrate on whichthe floor covering is used in practice. EN 13238 is relevant for the choice of the substratewhich has to be used in the test. If a substrate is used which is not according to EN 13238 then the test result is valid solely for the substrate used in the test.4.9 Underlayers and interlaymentsFloor covering systems utilising any underlay(s) or interlayment(s) in the end use shall betested with this underlayer(s) or interlayment(s). The test result is valid solely for theunderlay(s) or interlayment(s) used in the test.4.10 Washing and cleaning procedureWashing and cleaning might have a negative effect on the reaction to fire behaviour and has to be considered when testing and classifying. Washing and cleaning procedure has to beperformed on all floor coverings that have been treated with flame retardants which are not incorporated within the raw material and/or for all floor coverings that have been treated with flame retardants subsequent after production. The washing and cleaning procedures have to be specified in the product standard.4.11 Testing of floor covering tilesSpecimens for testing tiles must have a joint at a distance of 250 m from the zero point.When testing floor covering tiles which have a width smaller than the width of a specimenrequired for the EN ISO 9239-2 test, it is proposed to have also a lengthwise joint in thecentreline of the specimen.If the tiles are tested unglued to the substrate, the edges of the test specimens shall besecured by mechanical means as used in end use condition on the substrate at about100 mm distances.4.12 Colour and designFor the purpose of testing and classifying a product which is produced in different coloursand designs at least one test specimen with the darkest colour and one test specimen with the lightest colour have to be tested. Two further tests have to be performed with that colour and design which gave the worst test result (in total three test specimens of this variant have to be tested). If the testing body expects that another colour than the lightest or darkestcolour can give the worst test results the testing body can decide to perform additional tests with this colour and design. The variant for which the worst test results were found has to be used for performing the classification.5 Testing according to EN ISO 11925-25.1 GeneralThis test method takes into regard the end use application. The end use application has to be considered when planning the test. The specimens have to be representative of the floor covering system.At least 6 specimens with the size 250 mm x 90 mm are necessary for a complete test used for classification purposes. If the thickness of the specimen is greater than 60 mm thethickness is reduced to 60 mm.Only surface flaming is relevant for floor coverings.Parameters which have to be considered when testing and doing the classification are: - Composition- Thickness- Weight per unit area or density- Effect of orientation in regard to the production- Structure of the surface- Adhesive(s)- Substrate(s)- Underlayer(s) and interlayment(s)- Washing and cleaning procedures- Colour and design5.2 CompositionThis parameter is the most important parameter when testing. Each flooring with differentcomposition has to be tested. No extended application of test results can be done withrespect to this parameter.5.3 ThicknessCovering a range of thickness is possible by testing the minimum thickness and themaximum thickness. At least three test specimens with the minimum thickness and threetest specimens with the maximum thickness have to be tested. The testing of the variantwhich gave the worst test result has to be repeated another three times (in total 6 testspecimens of this variant have to be tested). The test results of this variant have to be used for the purpose of classification according to EN 13501-1 covering the range of thicknessbetween the minimum and maximum thickness used in the tests.5.4 Weight per unit area and densityCovering a range of weight per unit area can be done by testing the minimum weight per unit area/density and the maximum weight per unit area/density. At least three test specimenswith the minimum weight per unit area/density and three test specimens with the maximum weight per unit area/density have to be tested. The testing of the variant which gave theworst test result has to be repeated another three times (in total 6 test specimens of thisvariant have to be tested). The test results of this variant have to be used for the purpose of classification according to EN 13501-1 covering the range of weight per unit area/densitybetween the minimum and maximum weight per unit area/density used in the tests.5.5 Effect of orientationFor materials having a directional surface effect 3 specimens in the production direction and3 specimens in a direction perpendicular to the former have to be prepared and tested. Theworst case determines the classification.5.6 Structure of the surface of the floor coveringThe structure of the surface (e. g. knobbed or smooth surface) may effect the flame spread.If a floor covering is produced with different surface structures this has to be consideredwhen testing, i. e. at least each surface structure has to be tested indicative and for the worst case the complete set of tests has to be done. The worst case determines the classification.5.7 AdhesivesIf a specific adhesive is used in the test, the test result is only valid for this specific adhesive.If the test is performed without using adhesives the test result is valid for the tested floorcovering with and without using adhesives in end use application.5.8 SubstratesThe specimens have to be tested on a substrate representative for the substrate on whichthe floor covering is used in practice. EN 13238 is relevant for the choice of the substratewhich has to be used in the test. The test result is valid solely for end use substratescovered by the substrate used in the test. If a substrate is used which is not according toEN 13238 then the test result is valid solely for the substrate used in the test.If a substrate is used which is not according to EN 13238 then the test result is valid solely for this substrate used in the test.5.9 Underlayers and interlaymentsFloor covering systems utilising any underlayer(s) or interlayment(s) in end use shall betested with this underlayer(s) or interlayment(s). The test result is valid solely for theunderlayer(s) or interlayment(s) used in the tests.5.10 Washing and cleaning procedureWashing and cleaning might have a negative effect on the reaction to fire behaviour and has to be considered when testing and classifying. Washing and cleaning procedure has to beperformed on all floor coverings that have been treated with flame retardants which are not incorporated within the raw material and/or for all floor coverings that have been treated with flame retardants subsequent after production. The washing and cleaning procedures have to be specified in the product standard.5.11 Colour and designFor the purpose of testing and classifying a product which is produced in different coloursand designs at least three test specimens with the darkest colour and three test specimens with the lightest colour have to be tested. Three further tests have to be performed with that colour and design which gave the worst test result (in total six test specimens of this variant have to be tested). If the testing body expects that another colour than the lightest or darkest colour can give the worst test results the testing body can decide to perform additional tests with this colour and design. The base for classification is the variant for which the worst test results were found.6 Testing according to EN ISO 11826.1 GeneralThis test procedure is testing just the material without taking into consideration the end use application. Nevertheless all components of a floor covering system shall be considered.Only the substantial components according to the definition of EN 13501-1 of the floorcovering system can be tested. Each substantial component of a non-homogenous floorcovering system has to be tested separately.At least five cylindrical specimens with a volume of (76 +0/-8) cm³, a diameter of(45 +0/-2) mm and a height of (50 +0/-3) mm are necessary for a complete test forclassification purposes. Specimens of samples with a thickness smaller than 50 mm have to be constructed by stacking an appropriate number of layers.Parameters which have to be considered when testing and classifying are:- Composition- Weight per unit area or density- Underlayer(s) and interlayment(s) (when considering a floor covering system, also underlayers and interlayers, providing they fulfil the requirement of the definition of asubstantial component, have to be tested separately)- Washing and cleaning procedures- Adhesive(s) (providing the adhesive(s) fulfil the requirement of the definition of a substantial component)6.2 CompositionThis parameter is the most important parameter when testing. Each flooring with differentcomposition has to be tested. No extended application of test results can be done withrespect to this parameter.6.3 Weight per unit area and densityCovering a range of weight per unit area or density can be done by testing the minimumweight per unit area/density and the maximum weight per unit area/density. The test result is valid for the range of all weight per unit areas/densities between the tested limits.6.4 Underlayer(s) and/or interlayment(s)Floor covering systems utilising any underlayer(s) and/or interlayment(s) in end use shall be tested and evaluated with regard to this underlayer(s) and/or interlayment(s) where relevant(i. e. when substantial). The test result is valid solely for the underlayer(s) and/orinterlayment(s) used in the test.6.5 Washing and cleaning procedureWashing and cleaning might have a negative effect on the reaction to fire behaviour and has to be considered when testing and classifying. Washing and cleaning procedure has to beperformed on all floor coverings that have been treated with flame retardants which are not incorporated within the raw material and/or for all floor coverings that have been treated with flame retardants subsequent after production. The washing and cleaning procedures have to be specified in the product standard.6.6 AdhesivesWhen relevant (i. e. when the adhesive is a substantial component of a floor coveringsystem) floor covering systems utilising adhesives in end use shall be tested and evaluated with regard to this adhesives. The test result is valid solely for the adhesives used in the test.7 Testing according to EN ISO 17167.1 GeneralThis test procedure is testing just the material without taking into consideration the end use application. Nevertheless each component of a floor covering system has to be considered.Each layer of a non-homogenous floor covering system (that includes also adhesives,underlayers and interlayments) has to be tested for getting the PCS-value and doing theevaluation according to EN ISO 1716 for each layer.For an homogenous product a representative sample of at least 50g has to be taken from5 randomly selected parts of the product, taken from across the thickness.The total mass of the sample of a substantial component of a non homogenous productmust be at least 50g. The sample has to be taken from 5 randomly selected parts of thesubstantial component.The total mass of the sample of a non substantial component of a non homogenous product must be at least 10g. The sample has to be taken from 5 randomly selected parts of the non substantial component.For a component which is applied as a liquid the mass of the sample must be at least 10g of the set component.Parameters which have to be considered when testing and calculating and doing theclassification.- Composition of the flooring- Weight per unit area or density- Adhesives- Underlayer(s) and interlayment(s)7.2 CompositionThis parameter is the most important parameter when testing. Each flooring with differentcomposition has to be tested. No extended application of test results can be done withrespect to this parameter.7.3 Weight per unit area and densityCovering a range of weight per unit area or density can be done by testing the minimumweight per unit area/density and the maximum weight per unit area/density. The test result is valid for the range of all weight per unit areas/densities between the tested limits.7.4 AdhesivesIf a specific adhesive is used in practice, the test shall be performed with regard to thisadhesive. The test result is only valid for this specific adhesive.interlayment(s)7.5 Underlayer(s)andFloor covering systems utilising any underlayer(s) and/or interlayment(s) in end use shall be tested with regard to this underlayer(s) and interlayment(s). The test result is valid solely for the underlayer(s) and interlayment(s) tested.。